On the Uncanny

Marion Crane is a lead character in Psycho (1960) and was played by actress Janet Leigh.

The character of Mary Crane was originally created by author Robert Bloch for his 1959 novel, Psycho. During the early stages of the film's production, the studio's research department found there were two people with that name in the Phoenix area and Hitchcock was asked to select from a list of alternative first names from which he chose "Marion".